1. PROTEINS

2. Proteins Macromolecules that contain N, C, H, & O
Polymers of molecules called amino acids
Amino acids are the building blocks of proteins
20 different amino acids found in nature

3. Amino Acids All have an amino group All have a “R” group
All have a Carboxyl group

4. Amino Acids
Amino Group
(-NH2)

5. Amino Acid
“R” Group

6. Amino Acids

7. Amino Acids
Carboxyl group
(-COOH)

8. Classes of Protein Enzymes Defense Storage Signal Contractile
Transport
Structural

9. Enzymes # 1 Protein Proteins that act as biological catalyst
Catalyst – substance that speeds up the rate of chemical reaction without being used up.

10. Enzymes Negative effects on enzymes pH Temperature
Most enzymes produced by the human body work best at 37oC

11. Enzymes
Play essential roles in regulating chemical pathways, making materials that cells need, releasing energy, and transferring information.